Lazard kaiin and rinehart christ



(NoModeL) 'L. KAHN 82; R. CHRIST.

GAS STOVE. N0.'464,688. Patented Dec. 8, 1891.

j? Jr a J K v 17 V .4 0 ,Q h n Witnesses Inventors W Z 21% 6M Attorney gmnsw UNITE STATES iATENT Orricn,

LAZARD KAHN AND RINEHART CHRIST, OF HAMILTON, OHIO, ASSIGNORE lO F. & L. KAHN d: BROTHERS, OF SAME PLACE.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 464,688, dated December 8, 1891.

Application filed April 11, 1891. Serial No. 388,518. (No model.)

To all whom it may concern:

Be it known that we, LAZARD KAHN and RINEHART CHRIST, of Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Gas-Stoves, of which the following is a specification.

This invention pertains to the construction and arrangement of burners on gas-stoves, and will be readily understood from the fol- 1o lowing description, taken in connection with the accompanying drawings,in Which- Figure 1 is a vertical section of a gas-burner shown in connection with a portion of the top plate of an ordinary gas-stove, the construc- I 5 tion exemplifying our present improvements; Fig. 2, a plan of the same, the stem and button of the automatic lighting arrangement being omitted; and Fig. 3 a plan of the body of the burner, showing the manner of mounting the lever therein.

. In the drawings, A indicates the ordinary top plate of a gasstove; B, one of the usual cooking-holes therein and under which is located the burner; G, the body of the burner,

having the ordinary disk form and disposed cent-rally under the cooking-hole of the top; D, the usual vertical flange formed with or attached to and dropping curtain-like from the margin of the top plate of the stove; E,

0 the usual burner-pipe leading to the body of the burner and serving to convey to the burner the mixture of gas and air for combustion; F, a plate forming the top of the body of the burner, this plate joining the ver- 3 5 tical walls of the burner of the body and having a circular form, so as to be capable of rotation on the body of the burner; G, the gas ajutages distributed, as usual, around the periphery of the body of the burner; 11, a cen- 0 ter piece engaging over the top plate F and extending down through a central opening therein and into a juncture with the lower portion or body of the burner, this center piece thus serving as a central pivot about which the top plate F may turn, and serving also as a means for clamping the plate F to the body of the burner, this center piccell being shown in the exeinplification ashavinga vertical opening entirely through it; J, a bolt uniting the center piece H to the body 0 of the burner; K, an arm proj ectin g rigidly from the burner-plate F and extending outwardly and upwardly to engage the under surface of the stove-top A; L, a bolt securing the outer end of the arm K rigidly to the stove-top, the body of this bolt and the openings through which it passes being square, so as to preventimproper swiveling of the arm upon the bolt; M, lugs projecting inwardly from the flange or side plate D and serving to support the outer end of the burner-pipe E at some distance from the side plate, so that air is at liberty to enter the outer end of theburner-pipeE; N, the gas-supply pipe leading from the source of gas-supply; O, the gas-nozzle on the discharging end of this pipe concentric with and near the outer end of the burner-pipe E, so that the forcible inflow of gas from pipe Nto the burner-pipe will project that gas into the burner and at the same time by injector-like action draw atmospheric air in at the open end of the burner-pipe, the mixture of gas and air thus going to the burner; P, a valveseat formed in the nozzle 0; Q, a valve-rod disposed within the burner-pipe and having 7 5 its end in the form of avalve engaging the valve-seat P and having its inner end in the neighborhood of the center of the burner; R, a weighted lever pivoted to the body of the burner and having the inner end of the valverod attached to it, whereby the gravity of the lever tends to press the valve-rod into seating or closed position and prevent the discharge of gas from the gas-pipe N; S, a stem working freely in a vertical guide in the burner and resting with its lower end upon the lever R, so that downward pressure upon the stem will litt'the Weighted lever and move the valve-rod to open position and permit the gas to flow to the burner; T, a head or button on the upper end of this stem and projecting normally above the top of the stove, so that a cooking-vessel or the like set upon the top of the stove will depress the stem and open the gas-valve; U, a tubeconnected with 5 the gas-pipe N and projecting inwardly to- -ward the burner and having its inner end ver R and journaled in these notches, and X a projection from the body of the burner provided with an eye for the support of the inner end of the tube U.

Gas-pipe N will of course have the usual gas-cock, so that the burner may be positively out off from the source of supply when the stove is not in use, such cock being also used, as usual, to regulate the quantity of gas flowing to the burner and the consequent heat of the flame; but assuming such cock to be open,still no gas can flow from the nozzle O into the burner, for the reason that the nozzle is closed by the valve-rod Q and held closed by the Weighted lever; but when a cooking-vessel is set upon the stove, then the lever is tipped and the valve-rod pulled open, and the gas is at liberty to flow to the burner mixed with air, as usual, and the gas can be lighted at the burner-holes. A small flame also burns at the inner end of tube U. \Vhen the cooking vessel is removed, then the weighted lever Will rock and valve-rod Q, will shut oi? the supply of gas from the interiorof the burner, but the small flame will continue to burn from tube U. hen the vessel is again set on the stove, the valve-rod is opened automatically and gas admitted to the burner and it lights from the flame from tube U. In this Way the gas is admitted to and shut off from'the burner automatically as a vessel is placed upon or removed from the stove-a result not at all novel. When the supply of gas is out 06 by closing pipe N by means of the usual stop-cock, then of course even the small flame from pipe U becomes extinguished. Burner-pipe E projects rigidly from the body 0 of the burner, and it of course projects in the proper direction to receive gas from the nozzles, as does also the tube U. The burner is sustained by the arm K, which projects outwardly from the burner in the direction best suited for its attachment to the stove-top. Plate F and the arm as are liberty to turn about the body of the burner, so that the arm may project in any desired direction with reference to the projection of burnerpipe E, tube U, and valverod Q. Bolt J holds the parts of the burner together, and the center piece II forms a cap over the trunnions of the lever. When the body of the burner is separated from the other parts, the lever may be readily disconnected, as will be understood by reference to Fig. 3. The outer end of arm K is so attached to the stove-top, as by means of the exemplifying square bolt L, that the arm is incapable of pivoting upon this bolt so as to to disturb the proper relationship between the valve-rod and the valveseat formed in the nozzle.

\Ve claim as our invention- 1. In a gas-stove, the combination, substantially as set forth, of a burner made in two or more parts pivotally united, an arm formed on one part and adapted for attachment to the stove-top, a gas-pipe to supply the burner with gas, an eye formed on the burner, and a tube engaging said eye and communicating With said gas-pipe.

2. In a gas-stove, the combination, substantially as set forth, of a burner formed in two or more parts pivotally united, an arm formed on one part and arranged for attachment to the stove-top, and two tubes attached to another part of the burner, one tube for admitting gas and air to the burner and the other tube for maintaining a lighting-flame.

3. In a gas-stove, the combination, substantially as set forth, of a gas-burner body having upwardly-open notches, a burner part secured to said body and roofing said notches, and a lever provided with trunnions engaging said notches.

LAZARD KAHN. RINEHART CHRIST.

\Vitnesses:

J. V. SEE, Wit. S. GIFFEN. 

